XML to JSON Converter Online

What Is an XML to JSON Converter?

An XML to JSON converter parses Extensible Markup Language documents and transforms them into JavaScript Object Notation format. XML has been the standard data interchange format for enterprise systems, SOAP web services, and configuration files for decades. JSON has become the preferred format for REST APIs, modern web applications, and NoSQL databases due to its lighter syntax and native JavaScript compatibility.

This converter uses the browser's built-in DOMParser to parse XML into a document object model, then recursively walks the element tree to build a corresponding JSON structure. Repeated sibling elements with the same tag name are automatically grouped into JSON arrays. Text-only elements are converted to their appropriate JavaScript types — numbers become numeric values, boolean strings become true/false, and other text remains as strings. The tool processes everything locally without server communication, protecting your XML documents from exposure.

How to Convert XML to JSON

1. Paste your XML document into the input panel. The parser accepts any well-formed XML including namespaced documents, CDATA sections, and deeply nested structures.
2. Click Convert to parse the XML and generate a JSON representation. Elements become object keys, attributes are preserved, and repeated elements become arrays.
3. Inspect the JSON output in the right panel. The output is formatted with 2-space indentation for readability. Numeric text content is automatically parsed into JSON numbers.
4. Copy or download the JSON result for use in your application, API testing tool, or database import workflow.

Why Convert XML to JSON with PinusX?

Enterprise developers frequently need to convert XML responses from SOAP services, banking APIs, or government data feeds into JSON for consumption by modern front-end applications. PinusX processes your XML entirely within the browser — 100% client-side — ensuring sensitive documents like financial transaction records, healthcare HL7 messages, or internal configuration manifests are never uploaded to third-party servers. After the jsonformatter.org credential leak exposed 80,000 users in November 2025, choosing a privacy-first tool is not optional but essential for responsible development.

Frequently Asked Questions

How are XML attributes handled in the conversion?

XML attributes on elements are currently converted as part of the element's object representation. For simple elements with only text content and no attributes, the value is extracted directly. Complex elements with both attributes and child elements produce a nested object structure.

What happens with XML namespaces?

Namespace prefixes are preserved in the element names within the JSON output. For example, <soap:Envelope> becomes a key named 'soap:Envelope' in the resulting JSON object. This preserves the namespace context for downstream processing.

Can this handle large XML files?

The converter runs in your browser, so it can handle XML documents up to several megabytes efficiently. For very large files exceeding 50MB, consider using command-line tools like xq or xmllint with jq for streaming conversion.

Are XML comments preserved in the JSON?

No. JSON does not support comments, so XML comments are discarded during conversion. If you need to preserve comments, consider storing them as special keys in the JSON output or maintaining them in a separate metadata structure.

Does this converter work offline?

Yes. Once the page is loaded, all conversion happens locally using JavaScript in your browser. You can disconnect from the internet and continue converting XML to JSON without any interruption.

Your data never leaves your browser. 100% client-side processing.